Ring setting machine



Nov. 19, 1957 E. CAIRELLI ETAL 2,313,440

RING SETTING MACHINE Filed Jan. 29, 1953 9 sheets-sheet 1 lnymvimn, Q4 ralnaldo W V414 Nov. 19, 1957 E. CAIRELLI ETAL 2,313,440

RING SETTING MACHINE Filed Jan. 29, 1953 9 Sheets-Sheet 2 g zap/Liam. razn eZZu 1957 E. CAIRELLI ET AL RING SETTING MACHINE 9 Sheets-Sheet 5 Filed Jan. 29, 1953 gran/65060 may;

Nov. 19; 1957 E. CAIRELLI ET AL RING SETTING MACHINE 9 Sheets-Sheet 6 Filed Jan. 29, 1953 III! II!!! Nov.'19, 1957 E. CAIRELLI ETAL 2,813,440

RING SETTING MACHINE Filed Jan, 29, 1953 9 Sheets-Sheet 7 if: 136 R 26 11(0 fin Nov. 19, 1957 E. CAIRELLI ET AL 2,813,440

RING SETTING MACHINE Filed Jan. 29, 1953 9 Shets-Sheet s QE W W""mf :3%- '123 :1141--\ Nov. 19, 1951 mm Jaii. 29, 195:

E. CAIRELLI ETAL 2,813,440

RING SETTING MACHINE 9 Sheets-Sheet 9 mantra (faireili,

thej yline ib-'10 or Fig.6;

tioh aligned "in the (sp ice-tea thefiine United States Patent ERJNGSETTINGMAGHINE en'cags, anteater it ittintibiiia, Wheaten, 11],, @1881 ifs to V il stm-J dhes "Company, (3 mega, 111., a amputation of Maseratinserts "A ilicationaanuar 'zm l-osaserii Nm mate "9 claims. tel.

This invention relates to a ring setting-machine for securing sheet holding ring seetio ns to the ring plate of a loose'leaf binder. The machine is ofthettype dis closed in x jprogressively aligning the ring sections facing one direction 'for'asubsequent ring setting operation and returning to the 'ho-pper-all ring sections not 'face din thesp roper direction. It is a further obiect o f th e inventiontoreinove said properly aligned ring sectio ns from the-e nd "ofsaid mandrel individually, to successively;position them onan "anYilcomprisingpart of the setting die of .atpu'nchpress,

and to set them individually in a ring plate in the relationsgl iip occupied in the completed loos e'leaf binder. It

is a lfurther object to provide means facilitating clearing of the ring setting machine in thee/vent any ri ng sections become jammed. Otherobjectsbf theinvention will become apparent'upon reading'the teami g description, taken in conjunction with theaccornpaiiying drawh "Fig. 1 is a side elevational view of a machine en'ibodying ezi e H i Q r Fig. 2 is atragrrientary frGnLeleVatitSha-I view gftlie (hopper end machinewi'thpartshroken'away to facilitate illustration of the structure; I

F ig. 3 is across sectional view, tilten aleng tli'e-1iiie 3-,3 of'Fig. 2; g V M 4 is a cross sectional view, taken along .thelir'ie of Fig. 3;

., Fig jl' a cross 'sec'aohal viewyeken'hong are are view of the 'end of aligning mandrel adjacent thepunch P e H 1. .1 -I-?ig. 9 is an enlarged-cross sectional view, taken along Fig. is an enlarged cross s ectidfial'vi'wftakhalong ice 2 "is afra inentary front elevational view of the png hpress end of themachine with parts broken away tqtaeiljta illustration of the structure;

g l ls z i"fragnientary top plan view of the punch 5 ptessend of th'e machine, showing the structure for movjiti'g tlie properiiy aligned ring sections from the mandrel to the anvil f the s'etting die in the punch press, with brqltena a'yto facilitate illustration of the structure; Figll'Zflis'a'frent vie'w, partly in elevation andpartly in n thkfen'alon'gthe line 17-17 of Fig. 16; 18 is a fragmentary top view, partly in plan and in sectien, taken along the line 18-18 of Fig. 17; Fig. "19"i's a fragmentary rear perspective view of the end o f the aligning mandrel adjacent the punch press; A isia rear view, partly in elevation and partly in ken along the line -20 of Fig. 18;

a g a fra g'rnentary perspective view of the end of the:al1gn1ng mandreladjacentthe punch press;

71s a fr 'agr'r'leritary cross sectional view of the settaken along the line 27- 27 of Fig. 16, with-a f "ctionip"osit ionetl on the anvil and the punch press "in ring "setting position;

28 'a'view, similar to Fig 27, with the punch iarelssriioved upwardly after the ring setting operation; A Fig. '29 is a fragnieritary side elevational view of the setting die, taken along 'the line 29-29 of Fig. 16, show- 'ingthe;l punch pressin its ring setting position;

A Fi'g. 3"0 'is-a fr'agmentafy side elevational view ofthe lprelss withparts broken away to facilitate illustratioii 'ofthe structure; 'Fig .'3 1is a perspective view of a-ring plate with the 'ring se'gatie ns settherein;

A Eig. 32 is a ;side elevational view of one of the ring sectionlgand Fig.3? isa'frontelevational view of the ring section. ln-the drawings, referring particularly to Figs. 1 and the reference numeral- 2 indicates a standard mounted on the fioor and supporting aplatform 3 ,provided with an integral split collar 4 which is tightened against the standard "i ncjonveritio-nalmanner by means of a plurality b'f bolts (not shown). A motor 5 and speed reducer 6 are riiounted on one end of the platform 3. A pulley 7 .is rigidly mounted-on the output shaft 8 of the speed reducer and drivesa belt 9 which extends around anot-her ..:pulley 10 mounted on an idler shaft 11 which is journ le d in fbearings 12 mounted on the opposite end of ip lat fonn 3. p p I A .pair of split collars 13 and '1-4 rigidly secured tothe standard 2 in vertical-1y spajced relationship are 2 provided respectively -with brackets 15 and 16 which project later- *aliy' therfrom. The-brackets 15 and 1 6 supportopposite entsef 'a post 5 17 mounted such manner as to he free t 'Era te. kubber bu mpers l s and -19 encircle the post are held again'st brackets 15 and 16 respectively a ers 2'0 'and 2'1 so that the vibrations ofthe post, in am'anner hereinafterdesciibed, are not trans- V oft e brackets tI Sand I6. A laterally extending 12,:figi'dly1'se'cured to the post 17 in any suitable "flasher, has a tubular sleeve 23 clamped thereto 'by "a by arms 30 and is operable to vibrate the post 17 and the parts rigidly connected thereto. The arms 30 are moved pivotally until the vibrator is positioned to transmtt vibrations to the various parts of the machine that are to be vibrated, and are then secured in that position by means of a nut threaded on the stud 32. The vibrator is conventional and includes means for varying the intensity of the vibrations in accordance with the desires of the operator.

A hopper 34 is rigidly secured to the standard 2 by means of a plate 35 welded to one wall of the hopper and secured to another plate 36 carried by a split collar 37 clamped to the standard. The hopper is closed on all sides except one side and the bottom. The upper portion of said one side is open, but its lower portion 38 is closed. and the upper edge of said lower portion terminates in a lip 39 which is bent angularly into the hopper. A shaft 40 mounted in a bracket 41 rotatably sup ports a pulley 42 adjacent the open upper portion of said one side.

The pulley 42 cooperates with the pulley 10 in sup- I porting an endless conveyor belt 43 driven bythe pulley 10. A plurality of cleats 44 are secured to the conveyor belt 43 in uniformly spaced relation. The cleats extend transversely of the belt and extend outwardly therefrom. The cleats engage the ring sections 45, fed to the conveyor belt in a manner hereinafter described, to carry them upwardly to the hopper. The conveyor belt is arranged angularly relative to the partially open side of the hopper, and the upper end of the conveyor belt enters the open portion of the hopper far enough so that the ring sections. which are thrown oif the conveyor at this point by centrifugal force, fall into the hopper when they are released from the conveyor belt. The ascending reach of the conveyor belt, which carries the ring sections, is partially enclosed by a trough 46 of brass or other metal not affected by magnetism. The lower end of the trough 46 is secured to a pair of plates 47 mounted on the platform 3. A guard cover 48 is screwed to the side walls 49 of the trough and completely enclosesthe ascending reach of the conveyor belt. The upper end of the trough 46 terminates just below the pulley 42, but the upper end of the cover 48 is extended around the pulley 42 and is secured to the top'of the housing 34. As shown in Fig. 5, a plurality of bar magnets 50, secured to the underside of trough 46 by clamps 51, holds the ring sections against the conveyor belt as they are moved upwardly by the cleats 44. g g

A spillway 52 extends across the bottom of the hopper 34 and is hinged to one wall thereof. as indicated at 53.

The spillway slopes downwardly, relative to the bottom of the hopper so as to leave a gap between the spillway and the side of the hopper opposite the one to which the spillway is hinged. The height of this gap, through which the ring sections are fed from the hopper, is regulated by the angle at which the spillway is disposed. A bracket 54, secured to the hopper, is provided with a vertical slot 55, and the spillway has a laterally projecting stud 56 projecting through the slot 55 to. help support the spillway. A bracket 57, clamped to the post 17, as indicated at 58, extends under the spillway and is provided with an adjustable screw 59 which engages the bottom of the spillway to help support it and to transmit vibrations from the post 17 to the spillway to cause the ring sections to move downwardly along the spillway downwardly inclined chute 60 into which the ring sections fall in haphazard arrangement. The chute 60 is supported adjacent its upper end by an arm 61 hinged to the bottom of the trough 60, as indicated at 62. The arm 61 has a vertical slot 63 which is interengaged with a stud 64 projecting laterally from the outer end of the tubular sleeve 23. The stud 64 is provided with a nut (not shown) which may be tightened to hold the chute 60 at any inclination to which it is adjusted. The lower end of chute 60 is supported by a pair of brackets 65 secured to the bottom of the chute and pivotally secured at their other end to an aligning mandrel 66, hereinafter described in detail. The mandrel and the tubular sleeve 23 are both vibrated, and the vibrations are transmitted to the chute 60 through the arm 61 and the brackets 65 to cause the ring sections to move downwardly along the chute 60.

As shown in Figs. 2, 3 and 4, the botttom wall of I chute 60 is serrated transversely to divide it into a plurality of longitudinally extending sections 67 each having an upstanding rib 68 at one edge and sloping downwardly in a transverse direction towards the bottom of the rib 68 defining the upstanding wall of the adjacent section. The width of each of these sections 67 is approximately equal to the lateral distance between ends and the outermost portion of the ring sections. The angular sections 67 tend to align the ring sections longitudinally as they move towards the lower end of chute 60. Each of the sections 67 is provided at its lower end with a longitudinal opening 69 of substantially the same length as the ring sections 45 and positioned directly above the upper end of the aligning mandrel 66. The opening 69 are of silghtly less width than the lateral distance between the end of ring sections and their outermost portion, thereby causing the ring sections to turn through a ninety degree angle as they pass through the openings 69 and fall on to the aligning mandrel.

A platform 70, positioned below the aligning mandrel 66 and extending laterally beyond both edges of the mandrel, has its bottom wall extending between the bottom of block 25 and the top of bracket 26 and is secured by the same bolts which hold the bracket 26 in place. Any ring sections falling through the openings 69 which do not stay on the mandrel 66 land on the platform 70, which also catches any ring sections that are improperly aligned on the mandrel and are subsequently displaced therefrom, as hereinafter described. The platform 70 extends downwardly in parallelism with the aligning mandrel 66, and its lower end terminates above a trough 71. A short chute 72, which is also inclined downwardly, extends from the trough 71 and terminates adjacent the upwardly moving portion .of conveyor belt 43. Any ring sections 45 which fall from the aligning mandrel on to platform 70, as well as ring sections that are dumped thereon manually from the supply source, move downwardly into chute 72 and are fed thereby to the upwardly moving portion of conveyor belt 43 by means of which they are dumped into the hopper 34.

The aligning mandrel 66 comprises a rod or tube having its outer circumference conforming to the concave curvature of the ring sections 45 and slopes downwardly from a point directly below the openings 69 of the chute 60 to a transfer block 73. The upper end of the aligning mandrel is secured to the upper surface of block 24 which is shaped to fit the outer circumference of the mandrel. The vibrations of the tubular sleeve 23 are transmitted through the block 24 to the mandrel to cause the ring sections 45 that fall on the mandrel through the openings 69 to move downwardly along the mandrel towards the transfer block.

As the ring sections are moved downwardly along the mandrel 66 they are progressively rotated relative to the mandrel to align the ring sections that are facing in one direction to position them properly for the subsequent operations when they reach the transfer block, andto remove the ring sections that areraci irgn apps te Tdirection. "The aligning meansffllus'rrateal "'6 to -1'4, inclusive, comprise a plurality st aligning ifs'74, 75, 76, "77 and'78 in the form of flatis'tr ips 1cprojectilat'eirally from the aligning mandrel 'l he'aligfning barsfl and 75 extend in a substantially horizontal plane adjacenttne upper 'end of the mandrel 66 and are secured iii place by a semi-circular band :79 secured to "the r half of l the mandrel and having laterally ,ex t endihg fl g'es'f'KO to which the bars 74 and '75 "are secured. Preferably the band 79 is secured to the mandrel 'and'tlie bars 74a'i1d75 are secured to the flanges 80 by 'screw iidllit' "h" l secured by any suitable means. dS I, band 79 and spaced therefrom, furnishesa na point (if support for the bars 74 and 7 5' and also supports the ends o'fbars76and77. V e I The aligning bars 74, 75, 76 and "7 7 are. notched, "as indicated at 82' and 83, foradist'ance exceeding the lehgth of the individ ual ring sections 45 a; cease sayin sections. moving downwardly on the aligning bars, instead of on the mandrel, to fall on to platform 70. Immediately to the right of the notches 8 2 and 83', as :seen in Figs. 6 and 7, the bars 74 and 75 gradually extend upwardly relative to the center of mandrel-G6, and the bars and 77 extend downwardly. The inner edges o'f' ha-rs 74 and 75 are spaced outwardly 'from the outer surface of the mandrel a distance greater than the cross sectional diameter of the ring sections 45 but than the'height of the lug '8'4 form'ed on one end of each-ring. section, as indicated at '85 and 86. At spaced intervals bands similar to the bands 79 and 81 are secured to the mandrel to provide additional support for the aligning bars. additional bands are properly shaped to have their flanges engage the aligning bars they are to support.

As the ring sections are moved along. the mandrel by gravity and the vibrations of the mandrel, those ring sect-ions having their lug 84 adjacent the aligningfbar 7-4 are progressively forced upwardly and "towards the rear side of the mandrel 66, as viewed in 6-,-by the engagement of the bar 74 with said lugs Similarly, the ringsections facing in the opposite direction are forced upwardly and towards the front side of the mandrel. i -he space85 allows the end of the latter ring. sections opposite the. lug 84 to pass between the bar '74 and the mandrel; and" the space 86' allows the corresponding. end of the first mentioned ring sections to pass between the bar jdand the mandrel. This movement of the difi rently facing? ring sections is clearly illustrated in Figs. I l and L2. will be noted that in the position shown and 'iIZ ;the ring sections are offset relativeto the vertical center line of the mandrel '66, and the engagement of'the lower aligni'ng bar 77 supports the ends of the ting sectionsopposite the. lug 34 when the ring sections face one direction, and the bar 76 supports the corresponding ehds of'the oppositely facing ringsections.

The aligning bars 74 and 75' terminate afa paint intermediate the length of the mandrel 66 beyond a point at which the ring sections have been rotated relative to. the mandrel a distance sufliciehfi to ofi's'eft m rela I've to-th'e vertical center line through the fiiandrel. Act: ingly, the ring sections havihg their lug. eras rs-c111. from the viewer, as seen? in Figs. and 6, drop oif lie mandrel on to platform m. The bar 7538mm tied past the ends of bars 74 and 76 to hold the oppos ltely faced ringsections against the periphery of the mandrel. The last mentioned ring sections are guided downw rd y around the far side of the mandrel, as een Fig; 6, by t-he engagement oftheir lower ends withthe rib 77-1 The forward end of rib 78 is spacedbeyoncf the ends of ribs 74 and 76 and is spaced. laterallyfroml the mandrel a dis tance great enough to allow the bo'dy portion of thesections to-pass between the onter surface or the .rhandie'l andthe inner-edge ofthe rib but-not, 'atnougli to allow the lug 84 to pass theretlirou'gh. r b 7B 6 ht ett gages the lug $4 an1d/th6 i'ib75 terminates ashort dis; "Beyond the paint of such'ttgagelllefit. "he 77 continues to approach the bottom of the mandrel an I the rib 78 approaches to top until the "ring section "i's'v ertical with the lug end at its top. I n n x The extreme lower end portion or themandrel 66 I jace'nt the transfer block 73 is cut away 'to give p' "ti'jon of the mandrel a semi-circular cross section "instead Ufa. circular cross s'etcion. If the mandrel is aso lld rod this portion is merely milled ofhbut it itiis tubular, a flat plate '87 is secured to this portion to forth a fiat a seto which a bracket 88 is secured, asshown in F nd 17. The 'late87 is 'ntegr'al with the rib 78, being j ne thereto' an integral bridge 89, as shown in Fig. fl. The "bracket '88 constitutes the means for supportingthe lower end of the mandrel. The bracket 88 is secured w plate 87 by screws 90 and to a; block '91 by screws 92. The bloclr91 is positioned above the topoftra rblock73 and is secured thereto by sc'rews 93. The rewjs 93 are encased in rubber, as indicated at 94, in Figs. T6 and 17, to permit the mandrel 66 to vibrate to its extremejend jivithout transmitting any vibrations to the transfer block 73.

A mandrel block 95 is positioned between the end "(if mandrel 66 and transfer block 73 and is secured to' the transfer block by means of a plurality of screws 96 (Fig. 116.). The mandrel block 95 is provided at its lower rear edge with an integral substantially semi-cylindrical p'ioje'ction 97 which is laterally aligned with the rear half portion of the mandrel 66 (Fig. 19) to receive the ime sections 45 from the mandrel and allow them to be moved tothe transfer block without vibration. The transfer block 73 rests on a substantially flat plate 98 providedwith a groove 99 into which the ring sections 45 are adaptedto The mandrel is inclined about ten degrees from are flat plate and the portion of the plate adjacent ones'i deof slot9f9 is cut away, as indicated at-100 (Fig. 23") 't'o permit the ring section-s to have their lower ends enter the groove with the ring secti'ons held vertically; Thetbdt torn edge of projection 97 is slightly offset, as indicated at 101 (Fig. 2 2) to guide the ring sections toward! the grsav.

The transfer block 73 is recessed above the grsov'ew to provide space for a pusher blade 162 which is reciprocable with its lower edge seated in the groove; The pusher blade is connected to a piston 1U3 ('Fig. 30) operated through a cylinder 104111 a manner hereinafter described. The upper edge of the pusher blade is held in. place 'by a plate 105 secured to the side of tr nsfer block 73 in any suitable manner. Q g

The transfer block is provided with another recess p'a r l lel with the recess in which the pusher blade 10 2' is tioned, and adjacent thereto. A fraction plate 1 06 is secured in said last mentioned recess by meansof apltirali'ty of bolts 107 (Figs. 17, 23', 25 and 26). The rearportioil 108 of friction plate 106 is provided with a plurality of magnets 109arcua'tely arranged to conform to the curvatitre of the ring sections 45. The magnets 109 are pesttioned slightly to the rear of projection- 97 just tar"- wardly of the front edge of pusher blade 102 when the pusher blade is in its rearmost position. Each time the pusher blade is moved rearwardly of the magnets they cooperatewith the pressure exerted against the r'ihglsections on the mandrel block by the force of the succeedingriiig sections, which are being vibrated downwardly on the mandrel, to move the end ring from the mandrel block into the, groove 99 in front of the front 'edge of thepusher blade. Thefront edge of the pusher bladeis curved, asshown' at 110' (Fig. 23) to engage the entire back' edge portion of the ring sections. The front portion 1110f friction plate 106 is slightly thicker than the rear: portion and is pressed outwardly by springsll-Z (Figs? 17 and 20) so that when each ring sect1on is pnshed forwardly by the pusher blade 102 it frictio'nally held betweenfthe. plate 106 -an'd the mandrel block 95 to prcvetit itffi-otn.

. a 7 moving angularly relative to the front edge of the pusher blade.

A setting'die 113 (Figs. 24, 27, 28, 29 and 30) is positioned on the bed 114 of a punch press 115 directly in front of the transfer block '73. The setting die comprises a solid steel block 116 having an integral anvil 117 projecting from its rear edge. The upper portion of the anvil is provided with a transversely extending groove 118 axially aligned with groove 99 to receive the upper portion of the ring section 45 pushed forwardly by the pusher blade 102. The anvil is of less height than the ring section to provide clearance for the ring section to be moved upwardly after it is set into the ring plate 119, as indicated in Fig. 28, to facilitate movement of the ring plate into position for the next ring setting operation, as hereinafter described. A rod 120, threaded transversely through block 116, provides an adjustable stop 121 which extends a short distance beyond the rear edgeof block 116 and abuts the lower end of the ring section 45 pushed on to the anvil by the pusher blade 102, to insure alignment of the lug 84, on the upper end of the ring section, with the punch pin 122 of the punch press. A nut 123 holds the rod 120 in any adjusted position.

The upper end of the ring section positioned in the setting die is pushed against a stop member 124 pivoted on a pin 125 in a recess 126 in the block 116. The pivotal mounting permits the stop member 124 to project above the top surface of the block 116 to engage the upper end of the ring section pushed forwardly by the pusher blade, and permits its downward movement during the ring setting operation. The stop member 124 has an elongated slot 127 engaging the pin 125 so that it may move forwardly a short distance under the influence of a spring 128. Another spring 125 urges the rear edge of the stop member upwardly to position it properly for engagement with the upper end of the ring section immediately after each ring setting operation, and holds it up until the next ring setting operation. The downward blow of the pressure pad 130 of the punch press during the ring setting operation forces the stop member 124 down into the recess 126 against the action of springs 128 and 129.

A carrier plate 131, for holding the ring plate 119, is pivoted adjacent the top front edge of the block 116, as indicated at 132. The carrier plate extends laterally beyond both edges of the block 116 and is urged upwardly by a pair of springs 133 which hold it up between each ring setting operation. A side plate 134 (Figs. 24 and 29) depending from the carrier plate 131, has a foot portion 135 which engages a pin 136, projecting laterally from the block 116, to limit the upward movement of the carrier plate.

A pair of retaining strips 137 and 138 (Figs. 27 and 28), secured to the underside of carrier plate 131, form a guideway for the positioning of the ring plate 119. The carrier plate is recessed above the inner edges of the retaining strips 137 and 138 to provide space for the edges of the ring plate. The carrier plate is provided with an aperture 139 slightly larger than the diameter of the punch pin 122. The aperture 139 is directly over the lug 84 when the ring section is moved on to the anvil 117 by the pusher blade 102. The punch pin 122 is moved down through the aperture 139 to swage the lug 84 and thereby set the ring section in the aperture 140 (Fig. 16), provided therefor in the ring plate.

A gage 141 (Figs. 16, 17 and 18), mounted on the punch press on one side of the setting die, is provided with an upstanding pin 142 which engages the second aperture 140 in the ring plate to insure proper positioning of the first aperture with the lug 84 of the ring section 45 held on .the anvil by the pusher blade. The gage 141 is laterally adjustable on a bar 143 to permit positioning of the .pin 142 in the second aperture 140 at the proper distance from the setting die when the spacing between ring sections is changed. A pivoted lever 144 urges the pin 142 upwardly to hold it in the aperture 140.. When the firstring section has been set, the upward movement of the carrier plate 131 moves the ring plate 119 out of engagement with the pin 142 to permit lateral shifting of the ring plate for the next ring setting operation.

A second gage 145, positioned on the opposite side of the setting die, is provided with a spring pressed bar 146 which engages the ring section previously set, as the ring plate is shifted laterally to the left, to position the ring plate for the next ring setting operation. The ring plate is shifted laterally when the carrier plate 131 is in its upper position. When the carrier plate and ring plate are moved downwardly by the next down stroke of the punch press, the previously set ring section engaging the bar 146 is moved downwardly far enough to disengage it, and the spring 147 moves the bar 146 slightly to the right, sothat it is not engaged by the same ring section when the ring plate moves upwardly with the carrier plate 131 after the ring setting operation. Thebar 146 is then ,in position to be engaged by the next ring section when the ring plate is shifted to the left after the second ring setting operation.

The punch press is conventional, and will notbe described .in detail. As outlined in Fig. 30, it includes an air valve 148 which is tripped by a lever 149. The downward movement of the punch press is initiated by stepping on a foot pedal (not shown). A cam plate rotates with the crank shaft of the punch press. When the lobe of the cam plate engages the end of lever 149, as at 150a, it actuates the lever and causes it to trip the air valve 148 to start the upward stroke of the punch press. The cam plate holds the lever 149 in this position until the end of the lobe, indicated at 150b, passes the end of the lever. The lever automatically moves to trip the air valve again at this point to start the downward stroke of the punch press. The air valve 148 is connected by an air line to the fitting 151 on the cylinder 104 and actuates the piston rod 103 during the upward stroke of the punch press to move the pusher blade 102 rearwardly and then forwardly to position a ring section on the anvil of the setting die. The pusher blade remains stationary in its forward position during the down stroke of the punch press to hold the ring section in proper position on the anvil for the ring setting operation.

If, for any reason, it is desired to activate the pusher blade 102 to position a ring section on the anvil without tripping the punch press, it may be done by means of a link 152 connected at one end to the lever 149, and at its other end to, a lever 153 pivoted to the punch press. If the lever 153 is moved down, it trips the air valve 148 to move the pusher'blade rearwardly just as if the punch press were moving to rotate the cam plate 150. This permits the next ring section to be fed from the mandrel black 95 to the groove 99 and forwardly in the groove to the anvil117 without causing the punch press to move. If ring sections are jammed so that it is desired to remove them without allowing any additional ring sections to be fed from the mandrel block, a different lever 154, also pivoted tothe punch press, is moved downwardly. The lever 154 is provided with an overhanging lug 155 that engages lever 153 to move it downwardly with the lever 154. However, before the lug 155 engages the upper edge of lever 153, the downward movement of lever 154, through spring 156 and a lever 157 moves a stud 158 upwardly into the rearward path of the pusher blade, to prevent rearward movement of the pusher blade far enough to permit another ring section to be fed from the mandrel block. The engagement of lug 155 with lever 153 will depress it to move the pusher blade rearwardly, but it can not move past the stud 158. The punch press will remain in its up position and the pusher blade will stay back far enough topermit cleaning out all the jammed rings. After the jammed rings have been cleaned away,

the. lever 1541 is released, and a spring, 1519 movesgthe stud 158= downwardly to its normal position. The: regular operative procedure may be resumed.

Although we have described a preferred embodiment of the, invention in considerable detail, it will be understood that the description thereof is intended to be illustrative, rather than restrictive, as many details may be modified or changed without departing from the spirit or scope of the invention. Accordingly, we do not desire to be restricted to the exact details of construction described.

We claim:

1. In a ring setting machine, a punch press, a mandrel block having one end adjacent said punch press, a setting die positioned in said punch press, said setting die including an anvil positioned forwardly of said end of said mandrel block and in the same horizontal plane therewith, a pusher blade reciprocable in said horizontal plane, said mandrel block being positioned adjacent the vertical plane of one side of said pusher blade, a plate positioned adjacent the vertical plane of the opposite side of said pusher blade, a plurality of magnets mounted in said plate and arranged arcuately to conform to the curvature of a ring section seated on said mandrel block, said magnets being aligned horizontally with said mandrel block and said pusher blade, said magnets being elfective upon retraction of said pusher blade to remove a ring section laterally from said mandrel block and to hold it in the same horizontal plane in front of said pusher blade, said pusher blade being engageable with said ring section to position it on said anvil.

2. In a ring setting machine, a punch press, a mandrel having one end adjacent said punch press, a block positioned adjacent said end of said mandrel and shaped to receive ring sections discharged from said end, a setting die positioned in said punch press, said setting die in cluding an anvil positioned forwardly of said block and in the same horizontal plane as the ring sections supported by said block, magnetic means facilitating individual removal of said ring sections from said block, and a pusher blade reciprocable in said horizontal plane, said pusher blade being engageable with a ring section removed from said block to position said ring section on said anvil.

3. In a ring setting machine, a punch press, a mandrel having one end adjacent said punch press, a block positioned adjacent the lower end of said mandrel and shaped to receive ring sections discharged from said end, a setting die positioned in said punch press, said setting die including an anvil positioned forwardly of said block and in the same horizontal plane as the ring sections supported by said block, magnetic means facilitating individual removal of said ring sections from said block, a friction plate spaced from the discharge end of said block a distance substantially equal to the thickness of wire from which said ring sections are made, and a pusher blade reciprocable between said block and said friction plate in said horizontal plane, said pusher blade being engageable with a ring section removed from said block to position said ring section on said anvil, said friction plate cooperating with the adjacent end of said block to prevent angular movement relative to said pusher blade of a ring section being moved by said blade.

4. In a ring setting machine, a punch press, a mandrel having one end adjacent said punch press, a block positioned adjacent said end of said mandrel and shaped to receive ring sections discharged from said end, a setting die positioned in said punch press, said setting die including an anvil positioned forwardly of said block and in the same horizontal plane as the ring sections supported by said block, a friction plate spaced laterally from the discharge end of said block a distance substantially equal to the thickness of said ring sections, a plurality of magnets arranged arcuately in said friction plate in approximate conformity with the shape of said ring sections to facilitate individual removal of said ring sections from said block and retention thereof against said friction plate, and a z 10 P sherlade. recipro able. betweensaidt block. and aid friction Plate in said-v horizontali plane. aid-p s er. b ade being engageable with a ring section removed from said block to po i onid fingz ecti nom saidanvila said i tion plate cooperating with, theadiaqentend of said block to prevent angular movementrel'ative to said pusher blade of a ring section being movedby said blade. a r

5. In a ring setting machine, a punch press, a mandrel having one end adjacent said punch press, a block positioned adjacent said end of said mandrel, said block having a rearwardly extending projection curved to fit said ring sections and aligned laterally with said end of said mandrel, whereby ring sections are moved from the mandrel on to said projection, magnetic means to facilitate individual removal of said ring sections from said projection, a setting die in said punch press, and a pusher blade engageable with each ring section removed from said projection to move said ring sections into said setting die.

6. In a ring setting machine, a vertically reciprocable punch press including a setting die secured thereto, a horizontally reciprocable pusher blade positioned rearwardly of said setting die, means for moving said pusher blade forwardly and rearwardly, the forward movement of said pusher blade being adapted to position a ring section in said setting die, an air valve synchronizing said pusher blade and punch press, a vertically disposed stud mounted rearwardly of said pusher blade, and means for manually operating said air valve to move said stud upwardly into the path of rearward movement of said pusher blade and to move said pusher blade a predetermined distance into engagement with said stud independently of said punch press to facilitate removal of any ring sections that may be jammed in said machine.

7. In a ring setting machine, a vertically reciprocable punch press including a setting die secured thereto, a horizontally reciprocable pusher blade positioned rearwardly of said setting die, means for moving said pusher blade forwardly and rearwardly, the forward movement of said pusher blade being adapted to position a ring section in said setting die, an air valve synchronizing said pusher blade and punch press, a stud movable into the path of rearward movement of said pusher blade, and a manually operable lever to trip said air valve to move said stud into the path of rearward movement of said pusher blade and to actuate said pusher blade independently of said punch press to move said pusher blade into engagement with said stud.

8. In a ring setting machine, a vertically reciprocable punch press including a setting die secured thereto, a horizontally reciprocable pusher blade positioned rearwardly of said setting die, means for moving said pusher blade forwardly to position a ring section in said setting die, an air valve synchronizing said pusher blade and punch press, a lever operable to trip said air valve to reciprocate said pusher blade through its complete cycle while said punch press is stationary, a stop member normally held out of the path of travel of said pusher blade, and another lever operable to move said stop member into the path of travel of said pusher blade to limit the rearward travel of said pusher blade to a predetermined distance.

9. In a ring setting machine, a vertically reciprocable punch press and a horizontally reciprocable pusher blade, an air valve synchronizing said pusher blade and punch press, a lever operable to trip said air valve to reciprocate said pusher blade through its complete cycle while said punch press is stationary, a stop member normally held out of the path of travel of said pusher blade, another lever operable to move said stop member into the path of travel of said pusher blade to limit the rearward travel of said pusher blade to a predetermined distance, and means projecting from said second mentioned lever to engage said first mentioned lever when said second mentioned lever has been moved a predetermined distance, said means actuating said first mentioned lever to trip 11 said air valve after said stop member has been moved into 2,246,494 the path of travel of said pusher blade. 2,327,849 2,360,991 References Cited in the file of this patent 2,575 504 UNITED STATES PATENTS 5 2,667,797

1,856,290 Prussing May 3, 1932 12 1 Amoit June 24, 1941 Wolf Aug. 24, 1943 Ward Oct. 24, 1944 Wright Nov. 20, 1951 Buenger Feb. 2, 1954 

